Need to convert telephone number into proper format

[agutschow (Alicia Gutschow)]

You might try looking at the following post. It is referencing how other users addressed format for Workday:

Workday Phone Write Back

We are trying to write back phone numbers to Workday (Authoritative source) but I have been seeing inconsistent results. We configured both WORK_MOBILE and PHONE_WORK in the schema and Attribute Sync for these but the common behavior is the update will get sent to Workday without a failure. This causes the Account Attribute to be updated, but on the next aggregation the value will return to null. Here are 2 different configurations that we have tried, each having the target value go back to nu…

If you still can’t get the phone number format in sync between Workday and Active Directory, you could:

1. Create identity attribute WORKDAY PHONE. Map this to the Workday Phone Number.
2. Use Work Phone Number (or Create AD PHONE), create a transform that updates the Workday Phone to the AD Phone format.
3. Use the Work Phone Number in Attribute Sync. Since the format of the attribute is matching, it should only trigger updates when the data changes.