At Universal Containers, the Account object has a Master-Detail relationship with an Invoice custom object. The app builder would like to change this to a lookup field, but is not able to do so.
What could be causing this?
- The Account is included in the workflow on the Invoice object.
- The Invoice must have at least one Master-Detail field for reporting.
- The Invoice records have existing values in the Account.
- The Account record includes Invoice roll-up summary fields.
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