Delete Relationships in the Gantt Chart

What a planner means

Delete relationships in the Gantt Chart is Oracle Delete relationships in the Gantt Chart. Double-click the line, Delete, Yes. It is a command. It is not stored as its own table. It is not Edit relationships in the Gantt Chart, not Create relationships in the Gantt Chart, not Delete relationships in the Activity Network, not View activity relationships in the Gantt Chart, not Remove predecessor relationships, not Remove successor relationships, not Change predecessor relationships, not Change successor relationships, not Unlink Activities, not Link Activities, not Assign Predecessors / Assign Successors, not Show Relationships, not EPPM Creating Activity Relationships Delete Relationship copied onto Professional, and not Primavera Cloud Gantt Delete Relationship.

Oracle does print a numbered how-to titled Delete relationships in the Gantt Chart. Oracle does not print a menu item named Delete relationships in the Gantt Chart. Do not invent Edit > Delete relationships in the Gantt Chart.

Oracle Delete relationships in the Gantt Chart (Professional):

1. "Double-click the line representing the relationship you want to delete."
2. "Click Delete."
3. "Click Yes."

Quote those. Quote Delete and Yes. The Edit Gantt counterpart prints OK, a different relationship type, and lag days. Do not collapse them. Do not invent that this how-to printed a dialog title, FS / FF / SF / SS codes, Finish-to-Start hyphens, a stored pred_type, a Type list, (None), relationship type, or lag days.

That how-to fetched prints no dialog title, no "Choose Project, Activities," no Display the Gantt Chart / Layout Options bar Show on Top, no Save, no edge mappings, no hint window, no comments, no OK, no Assign, no Select Project, no Display Activity Details, no circle, no Create Relationship, no right-click, no Delete Relationship, no Edit Relationship, no Apply, no Gantt Settings, no Remove, no Go To, and no privilege. Do not invent those on this how-to.

Edit relationships in the Gantt Chart is a different how-to. Oracle: "Double-click the line representing the relationship you want to edit." "Select a different relationship type." "Specify a new number of lag days." "Click OK." That changes one line. This delete how-to prints Delete / Yes, not OK / a different relationship type / lag days. Do not collapse them. See Edit Relationships in the Gantt Chart.

Delete relationships in the Activity Network is a different how-to. Oracle: "Double-click the line representing the relationship you want to delete." "Click Delete." "Click Yes." Same three sentences; the title is Activity Network, not Gantt Chart. Do not collapse those titles. That is the Network line, not the Gantt line.

Create relationships in the Gantt Chart is a different how-to. Draw from the edge of the predecessor activity bar (relationship pointer: "a vertical single-ended arrow") to the successor. Four edge sentences set finish to start / finish to finish / start to finish / start to start. That page prints a hint window and comments on Details tabs. This delete how-to is one existing line, not a new draw. See Create Relationships in the Gantt Chart.

View activity relationships in the Gantt Chart is a different how-to. Layout Options bar → Show on Top, Gantt Chart. "A line connecting two activity bars indicates an activity relationship." That page is view. It does not print Double-click, Delete, or Yes.

Show Relationships is a different command. Bar Chart Options General tab / Top Layout toolbar show-or-hide of relationship lines. Hiding lines is not this delete. See Show Relationships.

Remove predecessor relationships / Remove successor relationships are different how-tos. Oracle Remove predecessor: Project, Activities → select the activity → Activity Details Predecessors or Relationships tab → select the predecessor → Remove → Yes (and names Go To). Oracle Remove successor: same path on the Successors or Relationships tab. Those pages print Remove, not Double-click the line / Delete. Do not collapse them.

Change predecessor relationships / Change successor relationships are different how-tos. Project, Activities → Display Activity Details → Predecessors or Successors or Relationships tab → double-click Relationship Type / Lag / Remove. Those pages print a new relationship type and a new time value. Change predecessor prints Remove and does not print Yes. They do not print Double-click the line, Delete, or OK. See Change Predecessor Relationships and Change Successor Relationships.

Unlink Activities is a different command. Edit > Unlink Activities "Removes relationships between the selected activities." It does not double-click one drawn line. See Unlink Activities.

Link Activities is a different command. Edit > Link Activities creates a finish-to-start in listed order. It does not delete one drawn line. See Link Activities.

Assign Predecessors / Assign Successors are different commands. Edit > Assign > Predecessors / Successors open the Assign dialogs. Oracle Add predecessor relationships / Add successor relationships are Details → Assign. Those how-tos print Relationship Type / Lag / Comments after assign. They do not print Double-click the line / Delete / Yes. See Assign Predecessors and Assign Successors.

Oracle Activities window Working with activity relationships names Delete relationships in the Gantt Chart and Delete relationships in the Activity Network as separate tasks (with Create / Edit / View Gantt and Network, Add / Change / Remove predecessor and successor, and View in Activity Details / Trace logic). Working with the Gantt Chart also names Delete relationships in the Gantt Chart. Linking Activities with Relationships lists Create / Edit / Delete Gantt and Network as separate how-tos. Do not collapse those titles.

Add/Edit/Delete Activity Relationships privilege (Professional project profile): "Determines whether the profile will enable users to create, modify, and remove activity relationships assigned to projects." The Delete relationships in the Gantt Chart how-to fetched does not print that privilege. Do not invent that it did.

Professional vs EPPM

Professional — the how-to above. Double-click the line; Delete; Yes. That page fetched prints no Save, no right-click, and no Delete Relationship.

EPPM web — do not copy Professional Double-click / Delete / Yes onto EPPM.

Oracle EPPM Creating Activity Relationships is Gantt circle drag + Save. Tip: "To delete a relationship, right-click the relationship line and select Delete Relationship." Quote right-click and Delete Relationship as that page printed them. That page fetched does not print Double-click, Delete, Yes, Edit Relationship, or lag days. Do not invent that it did. Do not invent that Professional printed right-click, Delete Relationship, circle, Gantt Settings, or Save. Delete Relationship is not this Professional how-to.

Oracle EPPM Configuring Activity Relationships: "Configure activity relationships to adjust interdependencies between different activities." Navigation Menu → Projects → Activities; Gantt View; Gantt Settings and select to show relationships; "Right click the relationship line of the relationship you want to configure and click Edit Relationship." "In the Edit Relationship dialog box, configure the type and lag and click Apply." Save. Tip: "You can also configure predecessor and successor relationships from the Relationships detail windows." That page fetched does not print Double-click, Delete, Yes, or Delete Relationship. Do not invent that it did. That is EPPM edit, not this Professional delete.

Oracle EPPM Configuring Predecessor Relationships / Configuring Successor Relationships are the Relationships detail window (select a predecessor or successor; "Add or remove columns as needed"; "Select an option or enter a value for each field"; Save). Those are not Gantt-line delete. See Change Predecessor Relationships and Change Successor Relationships.

Oracle EPPM Gantt View Format (G48897): Relationship Lines; Gantt Settings Relationships "Show or hide relationships between activities in the Gantt." "Hovering directly to the left or right of an activity bar when relationship lines are visible in the Gantt will display: Create Relationship." That page fetched does not print Delete Relationship, Right click the relationship line, Double-click, Delete, or Yes. Do not invent that it did.

Primavera Cloud — Modify Activity Details in the Gantt Chart: "To delete an existing relationship, right-click a relationship line, and then select Delete Relationship." That is a different product. Do not copy Cloud right-click / Delete Relationship onto P6 Professional or EPPM.

XER

None. Oracle's project XER map TOC has no DELETEGANTT / DELETEREL / GANTTREL / DELETE_GANTT_RELATIONSHIP / DELETERELATIONSHIP table. After the command you see a missing TASKPRED. Do not invent a command %T. Do not treat a missing TASKPRED row as "the planner used Delete relationships in the Gantt Chart."

TASKPRED is the relationship. Columns that match names Oracle used elsewhere (Oracle XER labels): pred_type (Relationship Type), lag_hr_cnt (Lag), comments (Comments), task_id (Successor), pred_task_id (Predecessor). The Delete relationships in the Gantt Chart how-to fetched does not print those column names, a stored pred_type code, Comments, relationship type, or lag days. It prints Delete and Yes. See TASKPRED (Activity Relationships) and FS / SS / FF / SF + Lag (Planner Language).

A Viewer parse of one XER cannot reconstruct whether the planner used Gantt-line delete, Network-line delete, Unlink Activities, Remove predecessor / Remove successor, Change predecessor Remove, Assign Remove, import, or EPPM Creating Activity Relationships Delete Relationship.

Microsoft Project

Microsoft Change a task link: "Click View > Gantt Chart." "Double-click the link line between the two tasks." "Pick a dependency type from the Type list." "To get rid of the link entirely, pick (None) from the Type list."

That page's other way: "Double-click the Task Name field" → Predecessors tab → Type column, or (None) to delete.

Quote link line, Type list, and (None). P6 printed the line representing the relationship, Delete, and Yes. Do not collapse them. Microsoft Change a task link fetched prints no Delete and no Yes. Do not invent that it did. P6 delete fetched prints no Type list and no (None). Edit on P6 is a different how-to (a different relationship type / lag days / OK). They are not the same command as P6 Delete relationships in the Gantt Chart. Do not map P6 Gantt-line delete to MSP Change a task link / Predecessors tab / (None) as the same command. Do not claim MPXJ writes a real MPP.

Microsoft Unlink Tasks (Task tab, Schedule group) is a different Microsoft command: select the linked tasks, then Unlink Tasks. That is not Type (None) on the link line, and it is not this P6 how-to.

Don't

• Treat this as Create / Edit / View relationships in the Gantt Chart, Delete relationships in the Activity Network, Remove predecessor / Remove successor, Change predecessor / Change successor, Link Activities, Unlink Activities, Assign Predecessors / Assign Successors, Add predecessor / Add successor, Show Relationships, EPPM Creating Activity Relationships Delete Relationship copied onto Professional, or Cloud Gantt Delete Relationship.
• Collapse Network Delete (same three sentences; title Activity Network) onto this how-to's title Gantt Chart.
• Collapse Edit Gantt a different relationship type / lag days / OK onto this how-to's Delete / Yes.
• Collapse Remove predecessor / Remove successor Remove / Details-tab / Go To onto this how-to's Delete / Double-click the line / Yes.
• Invent that this how-to printed a dialog title, FS / FF / SF / SS codes, a Type list, (None), Comments, relationship type, lag days, OK, Save, Assign, Select Project, a circle, Create Relationship, right-click, Delete Relationship, Edit Relationship, Apply, Remove, or Go To.
• Invent a menu item named Delete relationships in the Gantt Chart, or invent that the how-to printed Choose Project, Activities / Show on Top, Gantt Chart.
• Invent that the delete how-to printed Add/Edit/Delete Activity Relationships.
• Copy Professional Double-click / Delete / Yes onto EPPM, or copy EPPM right-click / Delete Relationship / circle / Gantt Settings / Save onto Professional.
• Invent that EPPM Creating Activity Relationships printed Double-click / Delete / Yes, or that Configuring Activity Relationships printed Delete Relationship, or that Gantt View Format printed Right click / Delete Relationship / Double-click / Delete / Yes.
• Copy Cloud right-click / Delete Relationship onto Professional or EPPM.
• Invent a DELETEGANTT / DELETEREL / GANTTREL / DELETE_GANTT_RELATIONSHIP / DELETERELATIONSHIP XER table, or treat a missing TASKPRED row as "the planner used Delete relationships in the Gantt Chart."
• Claim a Viewer reconstructed that the planner last used Gantt-line delete from an XER.
• Map P6 Delete relationships in the Gantt Chart to MSP Change a task link / Predecessors tab / (None) / Unlink Tasks as the same command.
• Invent that Microsoft Change a task link printed Delete / Yes, or that P6 delete printed Type list / (None).
• Claim MPXJ writes a real MPP.