How to verify prefix for I-551 and I-766 in ev30
SAP SuccessFactors Onboarding 1.0
The DHS production environment will only accept specific 3 letter combinations when creating cases.
Below is a list of all the three letter combinations which are currently being used at the beginning of every document/card number.
Discontinued receipt codes include: "USA", "CHI", "SCR", "MCS" and "LOS”
If a candidate provides a document which does not have one of the above combinations (for example - LLI), the system will not allow you to proceed with a case with that prefix.
It is recommended that the person providing the document visit the closed USCIS
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