Credits posted at the Customer level are not made available to be applied to the Job level.
Resolution for 'assign credits issue: 'I need to assign credits to customer not job' available: Yes.
The assign credits issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the assign credits issue yourself by looking for a resolution described in the article. If it is a complex assign credits issue or you are unable to solve the issue, you may contact us by clicking here or by using other assign credits support options.
For more information about resolving issues related to assign credits in Quickbooks/QBO or to get support for the issue 'I need to assign credits to customer not job', click the link below: