Solution

To resolve this issue, do one of the following:

If the patch plan failed to analyze, prepare, or deploy, then edit the plan name and reduce its length, and retry the patching operation.

If the patch plan was deployed successfully, then the patch plan gets locked, and if switchback fails with this error, then you cannot edit the plan name in the wizard. Instead, run the following SQL update command to update the plan name in the Management Repository directly:

update em_pc_plans set name = 'New shorter name' where name = 'Older longer name';

commit;