Explaining EDI: Guide to Field Limitations

Share on facebook
Share on twitter
Share on linkedin

Below is your guide to EDI (Electronic Data Interchange) field limitations, including character quantity and special characters usage.

Field Limitations: Character limit

  • SKU – 48 character limit
  • SKU description field – 45 character limit
  • SKU length – 8 character limit
  • SKU width – 8 character limit
  • SKU height – 8 character limit
  • SKU weight – 8 character limit
  • Lot code – 12 character limit

Field Limitations: Restricted Characters for SKU or Name/Product Description Fields

  • Do not use the following:  * : ; & , . / ? ! ^ % ~ + “
    • Exceptions: dates and special instructions
  • Do not use apostrophes at the end of a word.
      • If it is in the middle of the word, then it is okay.
  • Decimals are usually okay.
  • Underscore and hyphens are fine.
  • () {} [] are only allowed in text fields (not in dates or math).

Related Reading: Explaining EDI – 200 Transaction Codes

Field Limitations: Special Characters

It is best practice to avoid commas, pipes, asterisks, and back or forward slashes. These are often used in EDI as segment or line terminators and can cause issues with mapping. As we move away from the use of CSV files towards other EDI translation options, the restrictions on data are diminishing but, for now, avoid using the following: * % ? . * \ | /:

New to EDI? Check out our post: What is EDI (Electronic Data Interchange)?

Avoiding Basic Deductions Header

Avoiding Basic Walmart Deductions

Deductions can hit your wallet hard, so it’s best to avoid them altogether. Here are some of the most common Walmart deduction codes that you may see and some best practices on ensuring you don’t see them again.

Read More »
Share on facebook
Share on twitter
Share on linkedin

Contact us

Drop your information in our handy form, including a brief message of what you’re looking for, and one of our sales experts will get back to you as soon as possible!


3739 N Steele Blvd,
Ste 300
Fayetteville, AR 72703

Seattle Office

1700 Seventh Ave,
Ste 2100
Seattle, WA 98101