Business Central | AL Development | SaaS Upgrade | API Integration

With recent updates to AL language in Microsoft Dynamics 365 Business Central, developers now have more flexibility when working with strings containing numeric suffixes — thanks to the new overload of the IncStr method.

If you’ve ever had to increment a string with a number at the end (e.g., “INV001” to “INV002”), you’ve probably used IncStr. But until recently, IncStr only allowed an increment of +1.

Let’s explore how the new overload changes that.

🆕 What’s New in IncStr?

Traditionally, IncStr was used like this:

NewString := IncStr('INV001');  // Result: 'INV002'

Now, with the new overload, you can specify how much to increment by:

NewString := IncStr('INV001', 5);  // Result: 'INV006'

✅ Syntax:

IncStr(Value: String, IncrementBy: Integer): String

This enhancement is particularly useful in scenarios like:

• Batch processing: Skipping ranges (e.g., test IDs, invoice numbers)
• Custom logic: Implementing non-sequential numbering patterns
• Looping identifiers: Where the next string isn’t always +1

⚙️ Example

LastCode := IncStr(LastCode, 5); // Jump by 5 in one go

🚧 Cases to Consider

• It only increments the last numeric section of the string.
• It respects the original number of digits (e.g., padding).
• If there’s no number, it defaults to 1 and appends it.

IncStr('ABC', 3);  // Result: 'ABC3'

The new IncStr overload is a small change with big impact — making it easier to handle advanced string number incrementing without tedious code.

Stay Tuned for more.