Sometimes a contact you are using in SAP CRM doesn't exist or has been deleted in SAP ERP, and that can cause a LOG10 error in a CRM quotation, or other errors setting up Webshop logins, etc.

Review the contact in CRM first, to make sure there is not a problem with the start date or end date for the contact.

I would recommend utilizing Wesley Stevens first, or Michael Nye second to resolve these issues as it can be complex to check, and fix, and submit the proper IT4U ticket when needed.

How to confirm a contact is missing in SAP ERP:

Login to SAP ERP.  Type in XD03 and click on green check-mark in upper left:

Enter Customer number, Distribution Channel (02), Division (61).  Click on green check-mark in lower right:

Click on tab Contact Person, scroll up/down to locate last name / first name of your contact or confirm it is missing:

Click on the green left back arrow button:

Then click on the red x button to exit XD03:

Go to to Accounts in SAP CRM, enter the Account ID, click on Search.  Click on Name in the results list:

Go to the Current Contacts assignment block, find your contact, and click on the pencil/paper icon:

Copy the email address to notepad to store it temporarily, delete the email address from CRM, press enter to make the little wheel spin.  What you have done is a dummy change, that should cause the contact to get replicated to ERP.  Paste the email from Notepad back into CRM, click on the green checkmark next to Back in the upper left corner:

Then click on Save in the upper left corner:

Go back to XD03 in SAP ERP to see if the contact was replicated  Might need to give it a few minutes.

If not replicated, you'll need to create an IT4U ticket using a particular method, depending whether or not the account is an MDG Master Data Governance account, or not.

Go to the account in CRM, go to Account Details and determine if Authorization Group is MDG Master Data Governance, or something else:

Go to IT4U Portal https://zeissprod.service-now.com/it4u

Click on Create Ticket.

For an MDG account, setup ticket in this way:

Example of a long description, which might be too wordy, strictly as an example:

New contact ID 3002397398 McClurg Kevin was created in CRM, for MDG account 990363 LISI MEDICAL Remmele, Inc, but it did not replicate to ERP and is not listed in transaction XD03.  So when quote 7761105724 was marked order received, ERP kicked it back with a LOG10 error in CRM.  Please replicate contact ID 3002397398 McClurg Kevin to MDG account 990363 LISI MEDICAL Remmele, Inc in ERP so that we may continue with processing this sales order.  Thank you.

For a Non-MDG account, setup ticket in this way:

Enter a long description explaining what account ID to replicate, and specifically which contact name and contact id to replicate from CRM to ERP.  Kasi will run a special program to replicate contacts.