Similarly, Automerge jobs can fail if there is a large number of trust-enabled or validation-enabled columns. The exact number of columns that cause the job to fail is variable and is based on the length of the column names and the number of trust-enabled columns (or, for Automerge jobs, validation-enabled columns as well). Long column names are at—or close to—the maximum allowable length of 26 characters. To avoid this problem, keep the number of trust-enabled columns below 100 and/or the length of the column names short. A work around is to enable all trust/validation columns before saving the base object to avoid running the synchronization job.