Support reuse of project/workspace prefixes

What is the challenge?

• Workspace prefixes become part of every record ID, so once a prefix has been used it is treated as unavailable for reuse even when the user believes it is no longer in use.

• This creates a frustrating experience when a user changes a new workspace prefix and then immediately wants to change it back, or when they want to repurpose a previously used prefix after records have been moved or removed.

• The current behavior is especially confusing when the only remaining record with the old prefix is a system-created parking lot / blank release, making the workspace appear empty even though the prefix is still considered occupied.

• There is also a related edge case when records that still use the prefix remain in the same workspace that is being renamed. In that case, the rename can still be blocked because the numbering reset logic is designed to avoid duplicate record numbers.

What is the impact?

• Admins and new customers can get blocked from simple workspace cleanup or renaming tasks.

• The limitation feels arbitrary because, from the user's perspective, the prefix may not be meaningfully in use.

• Support and engineering may need to step in for rare but high-friction cases where a customer wants to revert a prefix change on an active workspace.

• The experience reduces confidence in workspace setup because the rules are not obvious and the workaround depends on understanding hidden records and ID-generation behavior.

Describe your idea.

• Allow reuse of a project / workspace prefix when Aha! can determine that reuse will not create record ID ambiguity or number collisions.

• At a minimum, detect when the only blocker is an empty system-created parking lot or other placeholder record, and guide the user through safely removing it or automatically handling it.

• For workspaces being renamed, update the numbering reset behavior so that if all records using the prefix remain within that same workspace, the prefix change does not get blocked unnecessarily and duplicate numbers are still prevented.

• If full reuse is not always safe, provide a clearer explanation of why the prefix is blocked and what exact records must be removed before it can be used again.