Why is there a limit on messages for customers on invoices?

Hi there, reyesrenelopez1.

Like any other web application, QuickBooks Online imposes character limitation on messages for customers. This way, the program can easily load and send your invoices and ensure that it's running at peak performance when we're are processing a large volume of transactions.
 

Please know that we can enter up to 1000 characters in the message box displayed on the invoice. You can check out the list of the maximum number of characters that you can enter in the fields specified below:
 

• Account name: 100
• Account number: 7
• Amount (on all forms): 11
• Customer, Vendor/Vendor, and other names: 100
• Custom field display name (on all forms): 15
• Custom field (on all forms): 30
• Description on Single Time Activity: 4000
• Employee name: 25
• Item description (on all forms): 4000
• Item names: 100
• Memo: 4000
• Message displayed on invoice: 1000
• Message displayed on statement: 4000
• Notes in customer information: 4000
• Project name: 80
• Project notes: 1500
• Report company name: 100
• Report title: 192
• Transaction number (on all forms): 21

For more resources, you can also visit our Frequently Asked Questions regarding technical limits, file sizes, transaction volumes, and data entry.

Do you have questions about the acceptable characters in QuickBooks Online? You can read this guide to learn more about this topic.

As always, you can find me here if you further questions or require additional assistance in completing your tasks. Have a pleasant day ahead.