We can attach a file of your contract terms on your estimates by clicking on the Paper clip icon when creating an estimate.
If you have the time, you can check out this article for information about attaching documents for QuickBooks sales forms:
Resolution for 'contract terms issue: 'Adding contract terms on the back of an estimate/proposal' available: Yes.
The contract terms issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the contract terms issue yourself by looking for a resolution described in the article. If it is a complex contract terms issue or you are unable to solve the issue, you may contact us by clicking here or by using other contract terms support options.
For more information about resolving issues related to contract terms in Quickbooks/QBO or to get support for the issue 'Adding contract terms on the back of an estimate/proposal', click the link below: