drcode

This plugin is made to automate some tasks for users of HelloAsso, a platform for handling association memberships, with great customization possibilities.
It uses a Cron job, at the frequency of your choice, to perform : 
* A HelloAsso API call to retrieve your association members’ data, such as Email address, Name, and any other data they provided during sign-in 
* The outputting of that data to different services
For now, the possible outputs are : 
* Google groups : use Google API to add members’ email addresses to the group(s) of your choice 
* Mailchimp : use Mailchimp API to add or update members, including for merge fields and tags 
* WordPress : create WordPress user accounts on your site, and warn your members via automatic email 
* Custom function : execute any local PHP function with the data outputted from the HelloAsso API call
To help you for troubleshooting if necessary, every of these functions have a testing feature directly in the HelloAdherents settings page, and systematically output a response message in a log.txt file.

HelloAdhérents

Retrieve data from HelloAsso and use it to automatically update mailing lists, and more.

ypcs

This plugin adds new widget ‘Subscribe Google Groups’, which allows visitors to sign up to admin-specified Google Group.
After user as entered her e-mail address and submits the form, plugin (tries to) sends e-mail to GROUPNAME+subscribe@googlegroups.com. Afterwards, Google Groups sends confirmation link to submitter, and when user has clicked the link, she gets added to the group.
Note: If user domain has strict SPF/DKIM policies for e-mail handling, @googlegroups.com might reject their subscription request. In this case user needs to subscribe manually (by sending mail from her e-mail client or by visiting group page.)
Site can have 1-N widgets, each with their own configuration.

Subscribe Google Groups

Add widget(s) for subscribing to admin-specified Google Groups

HelloAdhérents vs Subscribe Google Groups