FAQs > Error Messages > Cannot Save Bunker Requirement - "Inquiry external reference is already in use"
There may be instances when you want to change the bunkering port under the Inquiries and Purchase of a Bunker Requirement but encounter the following error message:
This occurs when the information is interfaced from an external source into IMOS and contains an external reference.
To resolve this:
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Remove the external reference from the Inquiries and Purchases grid and save the Bunker Requirement.
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Change the bunkering port.
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Re-enter the external reference and save.