Hello, It is completely possible, depend on your current product management software the method for gathering data for making unique groups with their allergic or other attributes can be vary. You can also add an online panel or system to increase the speed of this process; for example online surveys or extra discounts for filling some subscription forms with personal data

If you like to speak more about it, we can have a call on defining a system or even setting up an online branch for your current business.

Dear Key,

Can you please explain a little more? Setting up a a concurrent user system by WooCommerce is possible with normal membership systems.

please you add some details about what specific feature you are looking for then probably I can help you better.

If you like we can have a fast call meeting about it as well.

Hello there,

For crowdfunding platforms you need to look at your idea from different perspective. there are a lot of things which need to be considered, from agreement sections that decrease number of scammers who join your website to UI and UX. Here are some friendly advice:

1 - There are big competitors like kickstarter and indiegogo out there in this market so you need some type of special difference to make your platform unique to be able to compete with them

2 - Make a targeted community on social networks(I can help you with that if you want) to have a marketing pool

3 - Try to find some innovative ideas to start your platform with them or start it with your own ideas

If you need any help or have further questions, please do not hesitate to send me a message here

Dear Friend,
You are totally right, websites like Fiverr, Upwork and Freelancer are mainly good for finding a Designer or Developer for your idea but in order to find marketer you need to stick mainly to marketing community. But before that here are some friendly advice:

- Most efficient group of marketers are influencers and what attract them is some extra benefits like special discounts and.... you should mainly try to make them feel their are special

- providing good set of tools and materials like (landing pages, banner ads, video ads and...) have a lot of effect on attracting experts cause it makes they work easier and faster

- Many marketers stick to high quality product so always stick to that to get better marketers

Here are some communities which are good for finding marketers:

https://stmforum.com/

https://affplaybook.com/

https://www.affiliatefix.com/

https://www.affilorama.com/forum/

https://www.warriorforum.com/

https://forums.digitalpoint.com/

https://www.wickedfire.com/

https://www.wealthyaffiliate.com/

http://www.cpaelites.com/

http://www.v7n.com/forums/

if you have any questions or helps please do not hesitate to contact me :)