How To Fix SO690 - & is not a valid fax number

SO690 - Overview

• Message type: E = Error

• Message class: SO - SAPoffice: message texts

• Message number: 690

• Message text: & is not a valid fax number

What causes this issue?

The fax number was entered in an incorrect format.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

You have the following options:
Delete the fax number, select the function <LB>Fax recipient</> and
make the appropriate entries in the subsequent screen.
Enter the fax number in the following format on the send screen:
<COUNTRY><Number> where <COUNTRY> is an identication code for the
international dialing code with a maximum of 3 characters.
<ZH>Example</>
The fax number for the SAP Hotline appears as follows: DE06227/34-1740

Error message extract from SAP system. Copyright SAP SE.

SO690 - Details

• The SAP error message SO690 indicates that the fax number you are trying to use is not valid. This error typically occurs when you are attempting to send a fax through the SAP system, and the system is unable to recognize the fax number format as valid.
  Causes:
  
  Incorrect Format: The fax number may not be in the correct format. SAP may require specific formatting, such as including country codes or omitting certain characters.
  Missing Information: The fax number field may be empty or missing required components (like area codes).
  Invalid Characters: The fax number may contain invalid characters (e.g., letters, special characters).
  
  Configuration Issues: There may be issues with the configuration of the fax sending functionality in SAP.
  Master Data Issues: The master data for the business partner or customer may not have a valid fax number entered.
  
  Solutions:
  
  
  Check Format: Ensure that the fax number is entered in the correct format. Typically, it should include the