Salesforce output is not working

[TommyLau]

I'm going to update some accounts in salesforce by using Salesforce output, but the output tool automatically change the account number column [Id] from 18 characters to 15 characters.

Error message:  Salesforce Output (2) Record-level error from Salesforce API: "INVALID_ID_FIELD:'0013000000HuIJr' is not a valid Salesforce ID for the type Contact:--"

Can anyone help? Thank you!