This is going to be dependant on your tenant metadata configuration for the parameter resolveLookupCode.
With this parameter set to true, incoming values will be transcoded and stored / exported via their standardized value. By setting this parameter to false, the original raw and transcoded values are both stored, but the original raw value is exported.
When POSTing a record from source SAP with attribute value:
"OrganizationType": [
{
"value": "Cust"
}
]
Then performing a GET on the record with the resolveLookupCode parameter false looks like this:
"OrganizationType": [
{
"type": "configuration/entityTypes/Organization/attributes/OrganizationType",
"ov": true,
"value": "Customer",
"lookupCode": "CUST",
"lookupRawValue": "Cust",
"uri": "entities/1QSU3Ao1/attributes/OrganizationType/3B7RWLR7t"
}
]
Based on RDM mapping for canonical raw value "CUST" --> "Customer", and SAP value mapping "Cust" --> "CUST"