Suppose you want to see if a Subscribers exists on a List in a Landing Page or Microsite Page in the Salesforce Marketing Cloud? I generally do that with SSJS for various reasons. It’s also possible to do it with AMPScript API functions. Bonus that it’s faster:
Do you know about the MicrositeURL() AMPScript function? It’s relatively new. It sure is handy if you’re building custom preference centers in Enterprise 2.0 business units.
The idea is that you can encrypt custom parameters in your email links to Microsite pages and then retrieve the unencrypted values with an AMPScript function. Once you have the business unit MID in the microsite page, you can use it to ensure your API calls are for the correct business unit.
In your email you would have this code:
In the case where the the subscriberMID is not set, default to the parent business unit’s MID, which is accessible from the memberid personalization string.
Did you know you can use regular expressions in AMPScript?
Here are some RegExMatch() snippets that I’ve used:
@s = input string
@p = pattern
@m = match
@o = output
Strip leading zeroes from a string
Check for all digits, no match
Check for all digits, match
Replace parenthetical text with space
input: whee (whatever it is) whoop
match: (whatever it is)
replaced: whee whoop
For further reading
Here is a good way to display a grid of external content in an email without repeating a significant amount of AMPScript. It utilizes an XML string and uses XPATH to retrieve content using the BuildRowSetFromXML() function.
Product Data Extension
Email Init Section
Content Area Init Section
Content Area Body
Questions? Comments? Feel free to leave a comment below.
Data Extensions in the Salesforce Marketing Cloud platform are simply database tables in which you can store data you need for your campaigns.
You can add rows to data extensions using:
With the API, you have a few options — SOAP being the most complex, AMPScript the simplest:
You can use AMPScript in emails, landing pages or SMS keyword configurations. I’ll use AMPScript in this example.
Here’s how you add or update a single row in a data extension named My_Test_DataExtension using the UpsertDE() function:
Here’s a breakdown of the UpsertDE() arguments in this example:
- The name of the data extension to receive the data
- Number of columns you’re using to check to see if there’s a matching row already in the data extension. (This means there will be only 1 pair of name and value arguments following this parameter. You could specify more.)
- The lookup column
- The lookup value
- Column 1 to update
- Column 1 update value
- Column 2 to update
- Column 2 update value
One cool thing you can do in the Salesforce Marketing Cloud is offer your subscribers a unique coupon code as part of a promotional email campaign. Here’s how to do it.
To start, create a “CouponCodes”Data Extension with the following columns:
Next, generate your own list of unique coupon codes in Excel. Include a “CouponCode” column header. Save the worksheet as CSV or Unicode (tab-delimited).
Then, import your coupons into the data extension with the adhoc import button:
Finally, add this AMPScript to your email. This code will try to find a coupon row for the specified email address in the CouponCodes data extension. If it finds one, it’ll return the coupon code. If not, it will “claim” an unclaimed code and associate it with the specified email address. The bit about the message context — that will prevent you from claiming coupon rows when you’re doing a send preview when building the email.
Keep these things in mind:
- Make sure you upload enough coupons for your target audience so you don’t run out of unclaimed coupons. For recurring coupon campaigns, you should build a system to monitoring unused coupon codes.
- Make sure the target of the coupon code (e-commerce site, POS system, etc) is using the same set of coupon codes as your campaign.
- You can also do this in an SMS campaign.
- The data extension name in the
claimrow()function cannot be a variable
- Any data extension referenced in a
claimrow()function must exist
For further reading:
Update 5/28/2013: Added additional gotchas about claimrow() function
Update 2/9/2015: Added empty() check after claimrow() function
Update 3/9/2016: Move code snippet to gist, added variable declaration for emailaddr
Update 7/24/2017: Removed unnecessary lookup. Thanks, Brian (see comments below).
Even though your email will pass validation in Salesforce Marketing Cloud, if you don’t check for positive lookupRows() results with rowcount() before using the row() function, then you may end up with a run-time error that aborts your send.
These kinds of errors are a pain to track down in the SFMC platform. Save yourself some debugging/support call time.